Ack!...I`m trying to earn some points so that I can drive a Tiger...Don`t make it anymore difficult for me!... 
As someone already mentioned, run some base resupply missions or capture a base. Those are the easiest ways to get perks.
As to the Tiger you probably won't want to use it as an offensive, but rather a defensive weapon you're first time out. If you lose it you lose the perks so you'll want to be in a position to get it home safely, or at least 6000 yards from the nearest enemy player before you end sortie.
They make great base defenders.